Table 2

Pregnancy-related conditions sustained by mothers of cases and controls†

Pregnancy complicationsCases
(n=153)
Controls
(n=153)
p Value
Maternal high blood pressure9 (5.9)3 (2.0)0.146
Preterm delivery‡1 (0.7)1 (0.7)1.0
Maternal infections20 (13.1)7 (4.6)0.015*
 Upper respiratory infection§5 (3.3)2 (1.3)0.453
 Lower respiratory infection¶2 (1.3)0 (0.0)0.157
 Gastrointestinal infection**4 (2.6)0 (0.0)0.046*
 Unspecified infections††9 (5.9)5 (3.3)0.388
Total complications30 (19.6)11 (7.2)0.003*
  • *p<0.005.

  • †Values are n (%). Comparison was made using exact McNemar's χ2 test.

  • ‡Defined as babies born alive before 37 weeks of gestational age.6

  • §Consisted of influenza, tonsillitis, pharyngitis, laryngitis, sinusitis or otitis media.

  • ¶Consisted of bronchitis, pneumonia and tuberculosis.

  • **Consisted of diarrhoea and typhoid fever.

  • ††Defined as fever of unknown cause for ≥3 days or requiring hospitalisation.